Shaping Phenolic Resin-Coated ZIF-67 to Millimeter-Scale Co/N Carbon Beads for Efficient Peroxymonosulfate Activation

被引：1

作者：

Yan, Xin ^{[1
]}

Yao, Yiyuan ^{[1
]}

Xiao, Chengming ^{[1
]}

Zhang, Hao ^{[1
]}

Xie, Jia ^{[1
]}

Zhang, Shuai ^{[1
]}

Qi, Junwen ^{[1
]}

Zhu, Zhigao ^{[1
]}

Sun, Xiuyun ^{[1
]}

Li, Jiansheng ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Jiangsu Key Lab Chem Pollut Control & Resources Re, Nanjing 210094, Peoples R China

来源：

MOLECULES | 2024年 / 29卷 / 17期

基金：

中国国家自然科学基金;

关键词：

MOF-derived carbon; porous carbon beads; peroxymonosulfate activation; aminophenol-formaldehyde; tetracycline; DEGRADATION; TETRACYCLINE; CATALYSTS; EVOLUTION;

D O I：

10.3390/molecules29174059

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Catalytic performance decline is a general issue when shaping fine powder into macroscale catalysts (e.g., beads, fiber, pellets). To address this challenge, a phenolic resin-assisted strategy was proposed to prepare porous Co/N carbon beads (ZACBs) at millimeter scale via the phase inversion method followed by confined pyrolysis. Specially, p-aminophenol-formaldehyde (AF) resin-coated zeolitic imidazolate framework (ZIF-67) nanoparticles were introduced to polyacrylonitrile (PAN) solution before pyrolysis. The thermosetting of the coated AF improved the interface compatibility between the ZIF-67 and PAN matrix, inhibiting the shrinkage of ZIF-67 particles, thus significantly improving the void structure of ZIF-67 and the dispersion of active species. The obtained ZACBs exhibited a 99.9% removal rate of tetracycline (TC) within 120 min, with a rate constant of 0.069 min-1 (2.3 times of ZIF-67/PAN carbon beads). The quenching experiments and electron paramagnetic resonance (EPR) tests showed that radicals dominated the reaction. This work provides new insight into the fabrication of high-performance MOF catalysts with outstanding recycling properties, which may promote the use of MOF powder in more practical applications.

引用

页数：14

共 46 条

[1] Copper-incorporated zinc manganite as a novel catalyst for activating peroxymonosulfate in the degradation of tetracycline [J].